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International Journal of Computer Assisted Radiology and Surgery

Published in:

01-11-2017 | Original Article

Atlas-Based Segmentation of Temporal Bone Anatomy

Authors: Kimerly A. Powell, Tong Liang, Brad Hittle, Don Stredney, Thomas Kerwin, Gregory J. Wiet

Published in: International Journal of Computer Assisted Radiology and Surgery | Issue 11/2017

Abstract

Purpose

To develop a time-efficient automated segmentation approach that could identify critical structures in the temporal bone for visual enhancement and use in surgical simulation software.

Methods

An atlas-based segmentation approach was developed to segment the cochlea, ossicles, semicircular canals (SCCs), and facial nerve in normal temporal bone CT images. This approach was tested in images of 26 cadaver bones (13 left, 13 right). The results of the automated segmentation were compared to manual segmentation visually and using DICE metric, average Hausdorff distance, and volume similarity.

Results

The DICE metrics were greater than 0.8 for the cochlea, malleus, incus, and the SCCs combined. It was slightly lower for the facial nerve. The average Hausdorff distance was less than one voxel for all structures, and the volume similarity was 0.86 or greater for all structures except the stapes.

Conclusions

The atlas-based approach with rigid body registration of the otic capsule was successful in segmenting critical structures of temporal bone anatomy for use in surgical simulation software.

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Title: Atlas-Based Segmentation of Temporal Bone Anatomy
Authors: Kimerly A. Powell
Tong Liang
Brad Hittle
Don Stredney
Thomas Kerwin
Gregory J. Wiet
Publication date: 01-11-2017
Publisher: Springer International Publishing
Published in: International Journal of Computer Assisted Radiology and Surgery / Issue 11/2017
Print ISSN: 1861-6410
Electronic ISSN: 1861-6429
DOI: https://doi.org/10.1007/s11548-017-1658-6

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Atlas-Based Segmentation of Temporal Bone Anatomy

Abstract

Purpose

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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